International Journal of Mechanical Engineering Technologies and Applications最新文献_第2页

PYROLYSIS OF CORN COB BIOMASS TOWARD GASEOUS PRODUCTS ON SMALL CAPACITY REACTOR 在小容量反应器上热解玉米芯生物质，生成气态产品

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.9

Fisal Yuliansyah, N. Hamidi, M. N. Sasongko

引用次数: 0

ASSESSING AND OPTIMIZING THE PERFORMANCE OF A SHELL AND TUBE HEAT EXCHANGER (E-2502) IN PHOSPHORIC ACID PRODUCTION: A CASE STUDY AT PT. PETROKIMIA GRESIK 评估和优化管壳式换热器（E-2502）在磷酸生产中的性能：PT.Petrokimia Gresik

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2024-01-31 DOI: 10.21776/mechta.2024.005.01.3

E. Saputro, Delfian Lutfiananda, Annisa Kurnia Pratiwi, Sutra Amelia Nugroho

{"title":"ASSESSING AND OPTIMIZING THE PERFORMANCE OF A SHELL AND TUBE HEAT EXCHANGER (E-2502) IN PHOSPHORIC ACID PRODUCTION: A CASE STUDY AT PT. PETROKIMIA GRESIK","authors":"E. Saputro, Delfian Lutfiananda, Annisa Kurnia Pratiwi, Sutra Amelia Nugroho","doi":"10.21776/mechta.2024.005.01.3","DOIUrl":"https://doi.org/10.21776/mechta.2024.005.01.3","url":null,"abstract":"PT. Petrokimia Gresik, established with a construction contract on August 10, 1964, stands as Indonesia's most comprehensive fertilizer factory. The company comprises various departments, including the Production Department IIIA, specializing in Phosphoric Acid Production. The objective of assessing the efficiency of a shell and tube cooler-type heat exchanger is to evaluate its performance, determining compliance with design specifications and identifying the need for cleaning and maintenance. The utilized heat exchanger, of the shell and tube type, employs water as its cooling source. According to design calculations conducted between September 13 and September 18, 2023, the expected efficiency of the cooler-type heat exchanger is 91.44%. However, actual data analysis over six days reveals a significant drop in efficiency, registering below 50%. A comparison between design and actual data suggests a decline in efficiency for the E-2502 cooler type. The decrease is attributed to substantial scaling in the E-2502 Heat Exchanger, stemming from the cooled P2O5 Acid solution and resulting in deposition during the heat transfer process. Consequently, it is imperative to initiate a cleaning process for the cooler-type heat exchanger to optimize the heat transfer mechanism.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"61 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140476584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IMPLEMENTATION OF RELIABILITY CENTERED MAINTENANCE (RCM) IN PERTAMINA HULU ENERGY SUBHOLDING UPSTREAM (PHE SHU) THROUGH PERTAMINA RELIABILITY DATA (PAREDA) DATABASE & APPLICATION DEVELOPMENT 通过pertamina可靠性数据(pareda)数据库和应用开发，在pertamina hulu能源控股上游(phe shu)实施以可靠性为中心的维护(rcm)

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.10

Khairil Fikri, D. B. Darmadi, Deddy Nuggraha, A. K. Tieu, J. Norrish

{"title":"IMPLEMENTATION OF RELIABILITY CENTERED MAINTENANCE (RCM) IN PERTAMINA HULU ENERGY SUBHOLDING UPSTREAM (PHE SHU) THROUGH PERTAMINA RELIABILITY DATA (PAREDA) DATABASE & APPLICATION DEVELOPMENT","authors":"Khairil Fikri, D. B. Darmadi, Deddy Nuggraha, A. K. Tieu, J. Norrish","doi":"10.21776/mechta.2023.004.02.10","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.02.10","url":null,"abstract":"As part of the integrated efforts that need to be made to achieve the target of becoming a world-class energy company, PHE SHU needs to carry out a series of strategic initiative programs related to the implementation of RCM which need to be carried out in several field including all Regions, Zones, Work Areas and Assets. In the context of implementing RCM at PHE SHU, management has carried out a series of massive and simultaneous activities during 2022-2023 period, both debriefing several workshops & socialization of RCM understanding, issuing task forces and director's orders, conducting site visits & field implementation pilot projects in the onshore area (GTC SKG Subang Field) as well as offshore area (GTG X-Ray Jatibarang Field), performing sharing sessions/focus group discussion, review maturity level assessment, initiate various continuous improvement and its replication to other fields, as well as database development and created Pertamina Reliability Data (PAREDA) applications.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122315048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

THE EFFECT OF ADDITION BISPHENOL-A-POLYCARBONATE FROM CD-R WASTE AS A CATALYST FOR HYDROGEN PRODUCTION 从cd-r废料中添加双酚a -聚碳酸酯作为催化剂产氢的效果

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.1

Sifa'ul Mas'ud, Abdul M. Sulaiman, Hogi Syahputra, Purnami Purnami

{"title":"THE EFFECT OF ADDITION BISPHENOL-A-POLYCARBONATE FROM CD-R WASTE AS A CATALYST FOR HYDROGEN PRODUCTION","authors":"Sifa'ul Mas'ud, Abdul M. Sulaiman, Hogi Syahputra, Purnami Purnami","doi":"10.21776/mechta.2023.004.02.1","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.02.1","url":null,"abstract":"In producing hydrogen, various methods can be used, one of which is the electrolysis of water. Electrolysis is a method for breaking water molecules into oxygen and hydrogen by using an electric current. Electrolysis does not require complicated equipment and systems, so it can be said to be the easiest method of producing hydrogen. But of the various methods for producing hydrogen, the electrolysis method is not widely used because of its low efficiency. Because of this, many efforts have been made with the aim of increasing hydrogen production in the electrolysis of water. In this paper, we use Bisphenol-A-Polycarbonate (BPA) compounds obtained from unused CD-R layers. BPA has aromatic compounds that have been tested by FTIR. Aromatic compounds can generate their own magnetic field; this magnetic field is used to disrupt hydrogen bonds in water so that the electrolysis process can be more optimal. It is also known that, on the surface of BPA, it has a tendency to be positively charged by FESEM testing. The predominantly positive BPA surface works effectively to attract OH- ions. This causes a lot of H+ ions to move freely so that the solution becomes more acidic, which results in easier mobility of electric currents. With the addition of 3 grams of BPA, it can produce 46% more ppm of hydrogen than conventional.\u0000 ","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124453437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PERFORATION AND PENETRATION OF FIBER METAL LAMINATES TARGET BY HEMISPHERICAL PROJECTILE 半球形弹丸对金属纤维层压板靶的穿孔和侵彻

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.8

M. Fadly, A. Purnowidodo, P. Setyarini, B. Bakri, S. Chandrabakty

引用次数: 0

QUAY CONTAINER CRANE PRODUCTIVITY EFFECTIVENESS ANALYSIS (CASE STUDY JAKARTA INTERNATIONAL CONTAINER TERMINAL) 码头集装箱起重机生产效率分析(以雅加达国际集装箱码头为例)

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.2

Mufti Imam Pekih, A. H. Sutawijaya

{"title":"QUAY CONTAINER CRANE PRODUCTIVITY EFFECTIVENESS ANALYSIS (CASE STUDY JAKARTA INTERNATIONAL CONTAINER TERMINAL)","authors":"Mufti Imam Pekih, A. H. Sutawijaya","doi":"10.21776/mechta.2023.004.02.2","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.02.2","url":null,"abstract":"The purpose of this study is to determine the effectiveness and productivity of Quay Container Crane (QCC) work through the value of OEE (availability, performance, quality) and identify losses affecting the OEE value of QCC. The method used is a explorative and descriptive analysis, which exposes availability, performance and quality of Quay Container Crane based on actual data and information by collecting, compiling, classifying and analysing data and information about the effectiveness and productivity of Quay Container Crane. The results of the OEE are analysed using the six big losses method to find the loss factor, root cause analysis using the Fishbone diagram and make improvement recommendations using the 5 why analysis method. Based on the research results, the OEE value of Quay Container Crane affected by the loss factor which are reduce speed losses, breakdown losses and idling and stoppage losses. The root of the problem comes from various causes, among others, many breakdown on spreaders, the maintenance schedule is still not correct, the operator's competence and knowledge are still lacking, and the technical problems in the Quay Container Cranes. \u0000 ","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122830286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

OPTIMIZATION OF CUTTING DIRECTION PARAMETERS FOR A CNC MILLING MACHINING PROCESS POCKET ON STRUCTURE AND SURFACE ROUGHNESS ON POSTEP MOTORCYCLE SPARE PARTS 摩托车零件结构和表面粗糙度数控铣削加工工艺袋的切削方向参数优化

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.3

M. N. A. Habiby, Puspo Vandy Istianto, M. Fahmi

{"title":"OPTIMIZATION OF CUTTING DIRECTION PARAMETERS FOR A CNC MILLING MACHINING PROCESS POCKET ON STRUCTURE AND SURFACE ROUGHNESS ON POSTEP MOTORCYCLE SPARE PARTS","authors":"M. N. A. Habiby, Puspo Vandy Istianto, M. Fahmi","doi":"10.21776/mechta.2023.004.02.3","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.02.3","url":null,"abstract":"CNC Milling machine is a machine that is widely used for the manufacture of a component. Product quality will be related to product selling value and consumer satisfaction, therefore the best parameters must be known in order to produce quality products. This study aims to determine the effect of the cutting direction on the structure and surface roughness of the pocket feeding CNC Milling machining process. Experimental methods are used to improve the quality of products produced by CNC Milling machines. The parameters used in this study are variations of spindle speed 500 rpm, 1900 rpm, and 5000 rpm, as well as variations of cutting direction, namely one way and zig-zag. The tests carried out are in the form of surface roughness testing, micro-structure observations, and macro-structures. The data analysis technique used is descriptive statistics. The results obtained are the use of the cutting direction parameter affects the quality of the resulting product in the form of structure and surface roughness. The zig-zag cutting direction parameter with spindle speed 5000 rpm obtained the lowest average surface roughness value of 0.87 Î¼m, while the one way cutting direction with spindle speed 500 rpm obtained the highest average roughness value of 2,84 Î¼m. In conclusion, using a higher spindle speed will result in a lower roughness value, while the zig-zag cutting direction produces a lower roughness value and a more even surface structure compared to one way cutting direction.","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134213983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PERFORMANCE DIESEL DUAL FUEL ENGINE ON ADDITIONAL COCONUT SHELL OIL 性能柴油双燃料发动机额外的椰子壳油

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.4

A. Nugroho, Mohfan Juni Winanto, Imam Syafa'at, R. Ratnani

{"title":"PERFORMANCE DIESEL DUAL FUEL ENGINE ON ADDITIONAL COCONUT SHELL OIL","authors":"A. Nugroho, Mohfan Juni Winanto, Imam Syafa'at, R. Ratnani","doi":"10.21776/mechta.2023.004.02.4","DOIUrl":"https://doi.org/10.21776/mechta.2023.004.02.4","url":null,"abstract":"Fuel alternative diesel was developed aiming to develop environmentally friendly alternative fuels in Indonesia. The purpose of this study was to determine the physical properties and quality of diesel produced from coconut shell liquid smoke, B20, and B40. The quality and physical properties of diesel in question were tested in terms of its Calorific Value, Viscosity, Density, and Cetane Number test. Based on the engine performance testing, the parameters sought were torque, power, and specific fuel consumption. In this case, the testing of the physical properties of diesel was conducted through the comparison of the fuel used, among others, the highest torque value was obtained at 32.415 Nm on diesel fuel for the engine shaft rotation of 1980 rpm with the mass load of 9.6 kg. Furthermore, fuel consumption specific was obtained from diesel fuel with the largest rotation of 3548 rpm using 337.4 g/kWh, while the lowest value was obtained from diesel B40 with a torque value of 24.702 Nm. In this case, the lowest mass fuel consumption specific (SFC)) was found in coconut shell oil mixture with the largest rotation of 1520 rpm using 40.9 g/kWh. The conclusion made was that the addition of coconut shell oil in diesel can reduce energy because the calorific value decreased, as evidenced by the addition of coconut shell oil causing the engine performance to decrease.\u0000 ","PeriodicalId":159477,"journal":{"name":"International Journal of Mechanical Engineering Technologies and Applications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123751640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EXPERIMENTAL ANALYSIS OF CASTOR OIL AND DIESEL OIL MIXTURES IN A 4-STROKE COMPRESSION COMBUSTION ENGINES 四冲程压缩内燃机中蓖麻油和柴油混合物的实验分析

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.6

S. Suardi, A. Alamsyah, A. M. Nugraha, M. U. Pawara

引用次数: 0

NUMERICAL APPROACH OF THE BLADE SHAPE AND NUMBER ON THE PERFORMANCE OF MULTIPLE BLADE CLOSED TYPE IMPULSE WIND TURBINE 叶片形状和数量对多叶片闭式脉冲风力机性能影响的数值方法

International Journal of Mechanical Engineering Technologies and Applications Pub Date : 2023-06-30 DOI: 10.21776/mechta.2023.004.02.11

H. Sasongko, H. Mirmanto, G. Bangga, E. F. Nugrahani, Johan Nicholas Pasaribu

引用次数: 0